From The Denver Post (Monte Whaley):
NISP officials blamed much of the cost hike on the addition of capacity for pump plants and pipelines by participants, and for increasing the storage capacity of Galeton Reservoir. The changes, say project officials, will increase efficiency and its sustainability. Cost increases were also brought on by a desire to answer questions about water quality, hydrology and riparian corridor issues. “We wanted to make sure, as does the Army Corps, that all questions are being answered,” said Kathy Peterson, chairwoman of the participant group. “It costs additional dollars and is taking additional time, but we believe it’s necessary.” In all, the cost estimate changes were not surprising, because estimates for projects of this size change over time, the district said.
But to [Save the Poudre’s Gary Wockner], it appears the project’s cost is spiraling out of control. “This project started out in 2003 for $350 million and it’s now $490 million,” he said. “There just seems to be no end in sight for the cost escalation.”
More Northern Integrated Supply Project coverage here and here.